BAIT

CKI1

bifunctional choline kinase/ethanolamine kinase CKI1, L000000346, YLR133W
Choline kinase; catalyzes the first step in phosphatidylcholine synthesis via the CDP-choline (Kennedy pathway); exhibits some ethanolamine kinase activity contributing to phosphatidylethanolamine synthesis via the CDP-ethanolamine pathway; CKI1 has a paralog, EKI1, that arose from the whole genome duplication
Kinome Project (Sc)
GO Process (2)
GO Function (2)
GO Component (1)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)
PREY

SPO14

PLD1, phospholipase D, L000002005, L000002946, YKR031C
Phospholipase D; catalyzes the hydrolysis of phosphatidylcholine, producing choline and phosphatidic acid; involved in Sec14p-independent secretion; required for meiosis and spore formation; differently regulated in secretion and meiosis; participates in transcription initiation and/or early elongation of specific genes; interacts with "foot domain" of RNA polymerase II; deletion results in abnormal CTD-Ser5 phosphorylation of RNA polymerase II at specific promoter regions
Saccharomyces cerevisiae (S288c)

Phenotypic Suppression

A genetic interaction is inferred when mutation or over expression of one gene results in suppression of any phenotype (other than lethality/growth defect) associated with mutation or over expression of another gene.

Publication

Regulation of phospholipid biosynthesis by phosphatidylinositol transfer protein Sec14p and its homologues. A critical role for phosphatidic acid.

Holic R, Zagorsek M, Griac P

Transcription of yeast phospholipid biosynthesis structural genes, which contain an inositol-sensitive upstream activating sequence in their promoters, responds to the availability of the soluble precursors inositol and choline and to changes in phospholipid metabolism. The INO1 gene is deregulated (derepressed when inositol is present) under the conditions of increased phosphatidylcholine (PtdCho) turnover, as occurs in the sec14Delta cki1Delta strain (SEC14 ... [more]

Eur. J. Biochem. Nov. 01, 2004; 271(22);4401-8 [Pubmed: 15560781]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: protein/peptide accumulation (APO:0000149)

Additional Notes

  • deletion of pdl1 returns Ino1 levels to normal in a sec14/cki1 double mutant
  • genetic complex

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SPO14 CKI1
Synthetic Lethality
Synthetic Lethality

A genetic interaction is inferred when mutations or deletions in separate genes, each of which alone causes a minimal phenotype, result in lethality when combined in the same cell under a given condition.

Low-BioGRID
163328
CKI1 SPO14
Synthetic Lethality
Synthetic Lethality

A genetic interaction is inferred when mutations or deletions in separate genes, each of which alone causes a minimal phenotype, result in lethality when combined in the same cell under a given condition.

Low-BioGRID
344124

Curated By

  • BioGRID